My CO2 vs HPA mushroom test

ChokingVictim · July 07, 2011, 12:31:49 AM

I decided to see what the difference in pellet mushrooming from my 2250 CO2 vs My HPA Disco Carbine that I just built from my 2250. The results show what I already knew. My new disco setup packs a punch. The shots were fired with the same 14 inch barrel.

832 fps at 2000psi

NorthStaR · July 07, 2011, 12:42:37 AM

Cool. What's the fpe of the two?

ChokingVictim · July 07, 2011, 12:59:58 AM

Quote from: NorthStaR on July 07, 2011, 12:42:37 AM
Cool. What's the fpe of the two?

Dunno my Chrony is broke.

1377x · July 07, 2011, 03:49:45 AM

Quote from: ChokingVictim on July 07, 2011, 12:59:58 AM
Dunno my Chrony is broke.

get it fixed!

nice pics
looks like your playing with power now!

quickster47 † · July 07, 2011, 04:06:51 AM

As 1377x stated, 'Get er fixed.' Ya know, an airgun man needs a good chrony cause it makes life easier.

Carl

ChokingVictim · July 07, 2011, 04:21:01 AM

Yeah I may go get a new one. wish i could find a good deal on one of the barrel mounted ones.

ChokingVictim · July 29, 2011, 12:38:48 AM

Quote from: 1377x on July 07, 2011, 03:49:45 AM
get it fixed!
nice pics
looks like your playing with power now!

New Chrony came in. she is shooting 832 with CPHP 14.3 at 2000psi.
I could probably get a little more if is adjust the power adjuster in to dump the valve harder but this seems like a nice setting.

quickster47 † · July 29, 2011, 12:55:20 AM

CV that is some good numbers you are getting. What chrony did you end up getting.

Carl

ChokingVictim · July 29, 2011, 01:11:13 AM

Quote from: quickster47 on July 29, 2011, 12:55:20 AM
CV that is some good numbers you are getting. What chrony did you end up getting.

Carl

I cheaped out and got an F-1

1377x · July 29, 2011, 02:58:50 PM

Quote from: ChokingVictim on July 29, 2011, 12:38:48 AM
New Chrony came in. she is shooting 832 with CPHP 14.3 at 2000psi.
I could probably get a little more if is adjust the power adjuster in to dump the valve harder but this seems like a nice setting.

a hpa guru told me to add a heavier hammer spring(.040-.041 wire) and power adjuster,should get you an extra 100fps
i had my disco getting 38fpe with a 14.5" barrel and 50fpe with a 24" barrel but there is more to it than what i mentiond

ChokingVictim · July 30, 2011, 12:14:52 AM

Quote from: 1377x on July 29, 2011, 02:58:50 PM
a hpa guru told me to add a heavier hammer spring(.040-.041 wire) and power adjuster,should get you an extra 100fps
i had my disco getting 38fpe with a 14.5" barrel and 50fpe with a 24" barrel but there is more to it than what i mentiond

Yeah, I have several hammer springs and a power adjuster. seems like this is the best setup for power and shot count.

1377x · July 30, 2011, 01:53:04 PM

Quote from: ChokingVictim on July 30, 2011, 12:14:52 AM
Yeah, I have several hammer springs and a power adjuster. seems like this is the best setup for power and shot count.

shot count is a good thing
at 38fpe and 50 i had a shot count of 5-9 with no change in poa/poi